This seemed like the only explanation.
"Herbert," Reed said, "I thought you couldn't see into the future more than forty-eight hours ahead." - "That ́s right"
"Then how could you see all the things you predicted tonight?"
Herbert went over to the window. "I wouldn't have known if I hadn't read the astronomy book." He pointed to the west, where the sun was going down. "Tomorrow it won ́t be like this."
"What do you mean?" Reed said, suddenly afraid. "What are you trying to say?"
"That ... tomorrow the sun will be different. Maybe it's better this way. I wanted them to be happy. That's why I lied to them."
"What is it?" Reed cried. "What's going to happen tomorrow? You must tell me!"
"Well, tomorrow the sun - I've forgotten the word. What do they call it when a star suddenly becomes a billion times hotter than it was before?"
"A nova?" Reed cried.
"That's it. Tomorrow ... the sun is going to explode!"
Night Gallery - The Boy Who Predicted Earthquakeshttp://www.dailymotion.com/video/x8hr3k_night-gallery-the-boy-who-predicted_shortfilms